ESFR DRY PENDENT SPRINKLER
VK512 K25.2 (GROOVED)
TECHNICAL DATA
The Viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058
Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: techsvcs@vikingcorp.com
Visit the Viking website for the latest edition of this technical data page www.vikinggroupinc.com
Page 7 of 8
Form No. F_071221 Rev 001 12.10.2021
Listing and Approval Specifications
ESFR Dry Pendent Sprinkler VK512
Maximum 175 PSI (12 bar) WWP
Base Part
Number
1
Nominal Length SIN Connection Size
Nominal K-Factor Approval Specification
3
U.S. metric
2
FM
24850A
VK512 25.2 363 A1
24853A
24856A
24859A
Approved Temperature Ratings
A - 165 °F (74 °C) and 205 °F (96 °C)
Approved Finish
1 - Brass
Footnotes
1
Base part number shown. For complete part number, refer to the price list.
2
Metric K-Factor measurement shown is when pressure is measured in bar. When pressure is measured in kPa, divide the metric K-Factor by 10.0.
3
This chart shows listings and approvals available at the time of printing. Other approvals may be in process.
IMPORTANT: Refer to Bulletin Form No. F_091699 - Care and Handling of Sprinklers. Also refer to Table 2.
TABLE 4
COMMODITY SELECTION AND DESIGN CRITERIA OVERVIEW FOR MODEL VK512 ESFR PENDENT SPRINKLERS
Storage Type NFPA FM
Sprinkler Type ESFR Storage
Response Type ESFR QR
System Type Wet Pipe system only Wet Pipe system only
Temperature Rating(s) ºF (ºC) 165 ºF (74 ºC) and 205 (96 ºC) 165 ºF (74 ºC) and 205 (96 ºC)
Open Frame Single, Double, Multiple-
Row, or Portable Rack Storage of Class I-IV
and Group A or B Plastics
Refer to NFPA 13. Refer to FM 2-0 and 8-9.
Solid Pile or Palletized Storage of Class I-IV and
Group A or B Plastics
Refer to NFPA 13. Refer to FM 2-0 and 8-9.
Idle Pallet Storage Refer to NFPA 13. Refer to FM 2-0, 8-9, and 8-24.
Rubber Tire Storage Refer to NFPA 13. Refer to FM 2-0 and 8-3.
Rolled Paper Storage (Refer to the standard.) Refer to NFPA 13. Refer to FM 8-21.
Flammable Liquid Storage (Refer to the standard.) Refer to NFPA 30. Refer to FM 7-29
Aerosol Storage (Refer to the standard.) Refer to NFPA 30B Refer to FM 7-31
Automotive Components in Portable Racks
(Control mode only, refer to the standard.)
Refer to NFPA 13. N/A
Minimum exposed barrel length Refer to NFPA 13. Refer to FM 2-0
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